1 /* $NetBSD: eln.c,v 1.19 2015/05/18 15:07:04 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35 #include "config.h"
36 #if !defined(lint) && !defined(SCCSID)
37 __RCSID("$NetBSD: eln.c,v 1.19 2015/05/18 15:07:04 christos Exp $");
38 #endif /* not lint && not SCCSID */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41
42 #include "histedit.h"
43 #include "el.h"
44 #include "read.h"
45 #include <stdarg.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48
49 public int
el_getc(EditLine * el,char * cp)50 el_getc(EditLine *el, char *cp)
51 {
52 int num_read;
53 wchar_t wc = 0;
54
55 if (!(el->el_flags & CHARSET_IS_UTF8))
56 el->el_flags |= IGNORE_EXTCHARS;
57 num_read = el_wgetc (el, &wc);
58 if (!(el->el_flags & CHARSET_IS_UTF8))
59 el->el_flags &= ~IGNORE_EXTCHARS;
60
61 if (num_read > 0)
62 *cp = (char)wc;
63 return num_read;
64 }
65
66
67 public void
el_push(EditLine * el,const char * str)68 el_push(EditLine *el, const char *str)
69 {
70 /* Using multibyte->wide string decoding works fine under single-byte
71 * character sets too, and Does The Right Thing. */
72 el_wpush(el, ct_decode_string(str, &el->el_lgcyconv));
73 }
74
75
76 public const char *
el_gets(EditLine * el,int * nread)77 el_gets(EditLine *el, int *nread)
78 {
79 const wchar_t *tmp;
80
81 if (!(el->el_flags & CHARSET_IS_UTF8))
82 el->el_flags |= IGNORE_EXTCHARS;
83 tmp = el_wgets(el, nread);
84 if (tmp != NULL) {
85 size_t nwread = 0;
86 for (int i = 0; i < *nread; i++)
87 nwread += ct_enc_width(tmp[i]);
88 *nread = (int)nwread;
89 }
90 if (!(el->el_flags & CHARSET_IS_UTF8))
91 el->el_flags &= ~IGNORE_EXTCHARS;
92 return ct_encode_string(tmp, &el->el_lgcyconv);
93 }
94
95
96 public int
el_parse(EditLine * el,int argc,const char * argv[])97 el_parse(EditLine *el, int argc, const char *argv[])
98 {
99 int ret;
100 const wchar_t **wargv;
101
102 wargv = (const wchar_t **)
103 ct_decode_argv(argc, argv, &el->el_lgcyconv);
104 if (!wargv)
105 return -1;
106 ret = el_wparse(el, argc, wargv);
107 ct_free_argv(wargv);
108
109 return ret;
110 }
111
112
113 public int
el_set(EditLine * el,int op,...)114 el_set(EditLine *el, int op, ...)
115 {
116 va_list ap;
117 int ret;
118
119 if (!el)
120 return -1;
121 va_start(ap, op);
122
123 switch (op) {
124 case EL_PROMPT: /* el_pfunc_t */
125 case EL_RPROMPT: {
126 el_pfunc_t p = va_arg(ap, el_pfunc_t);
127 ret = prompt_set(el, p, 0, op, 0);
128 break;
129 }
130
131 case EL_RESIZE: {
132 el_zfunc_t p = va_arg(ap, el_zfunc_t);
133 void *arg = va_arg(ap, void *);
134 ret = ch_resizefun(el, p, arg);
135 break;
136 }
137
138 case EL_ALIAS_TEXT: {
139 el_afunc_t p = va_arg(ap, el_afunc_t);
140 void *arg = va_arg(ap, void *);
141 ret = ch_aliasfun(el, p, arg);
142 break;
143 }
144
145 case EL_PROMPT_ESC:
146 case EL_RPROMPT_ESC: {
147 el_pfunc_t p = va_arg(ap, el_pfunc_t);
148 int c = va_arg(ap, int);
149
150 ret = prompt_set(el, p, c, op, 0);
151 break;
152 }
153
154 case EL_TERMINAL: /* const char * */
155 ret = el_wset(el, op, va_arg(ap, char *));
156 break;
157
158 case EL_EDITOR: /* const wchar_t * */
159 ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *),
160 &el->el_lgcyconv));
161 break;
162
163 case EL_SIGNAL: /* int */
164 case EL_EDITMODE:
165 case EL_UNBUFFERED:
166 case EL_PREP_TERM:
167 ret = el_wset(el, op, va_arg(ap, int));
168 break;
169
170 case EL_BIND: /* const char * list -> const wchar_t * list */
171 case EL_TELLTC:
172 case EL_SETTC:
173 case EL_ECHOTC:
174 case EL_SETTY: {
175 const char *argv[20];
176 int i;
177 const wchar_t **wargv;
178 for (i = 1; i < (int)__arraycount(argv) - 1; ++i)
179 if ((argv[i] = va_arg(ap, const char *)) == NULL)
180 break;
181 argv[0] = argv[i] = NULL;
182 wargv = (const wchar_t **)
183 ct_decode_argv(i + 1, argv, &el->el_lgcyconv);
184 if (!wargv) {
185 ret = -1;
186 goto out;
187 }
188 /*
189 * AFAIK we can't portably pass through our new wargv to
190 * el_wset(), so we have to reimplement the body of
191 * el_wset() for these ops.
192 */
193 switch (op) {
194 case EL_BIND:
195 wargv[0] = STR("bind");
196 ret = map_bind(el, i, wargv);
197 break;
198 case EL_TELLTC:
199 wargv[0] = STR("telltc");
200 ret = terminal_telltc(el, i, wargv);
201 break;
202 case EL_SETTC:
203 wargv[0] = STR("settc");
204 ret = terminal_settc(el, i, wargv);
205 break;
206 case EL_ECHOTC:
207 wargv[0] = STR("echotc");
208 ret = terminal_echotc(el, i, wargv);
209 break;
210 case EL_SETTY:
211 wargv[0] = STR("setty");
212 ret = tty_stty(el, i, wargv);
213 break;
214 default:
215 ret = -1;
216 }
217 ct_free_argv(wargv);
218 break;
219 }
220
221 /* XXX: do we need to change el_func_t too? */
222 case EL_ADDFN: { /* const char *, const char *, el_func_t */
223 const char *args[2];
224 el_func_t func;
225 wchar_t **wargv;
226
227 args[0] = va_arg(ap, const char *);
228 args[1] = va_arg(ap, const char *);
229 func = va_arg(ap, el_func_t);
230
231 wargv = ct_decode_argv(2, args, &el->el_lgcyconv);
232 if (!wargv) {
233 ret = -1;
234 goto out;
235 }
236 // XXX: The two strdup's leak
237 ret = map_addfunc(el, Strdup(wargv[0]), Strdup(wargv[1]),
238 func);
239 ct_free_argv(wargv);
240 break;
241 }
242 case EL_HIST: { /* hist_fun_t, const char * */
243 hist_fun_t fun = va_arg(ap, hist_fun_t);
244 void *ptr = va_arg(ap, void *);
245 ret = hist_set(el, fun, ptr);
246 el->el_flags |= NARROW_HISTORY;
247 break;
248 }
249
250 /* XXX: do we need to change el_rfunc_t? */
251 case EL_GETCFN: /* el_rfunc_t */
252 ret = el_wset(el, op, va_arg(ap, el_rfunc_t));
253 el->el_flags |= NARROW_READ;
254 break;
255
256 case EL_CLIENTDATA: /* void * */
257 ret = el_wset(el, op, va_arg(ap, void *));
258 break;
259
260 case EL_SETFP: { /* int, FILE * */
261 int what = va_arg(ap, int);
262 FILE *fp = va_arg(ap, FILE *);
263 ret = el_wset(el, op, what, fp);
264 break;
265 }
266
267 case EL_REFRESH:
268 re_clear_display(el);
269 re_refresh(el);
270 terminal__flush(el);
271 ret = 0;
272 break;
273
274 default:
275 ret = -1;
276 break;
277 }
278
279 out:
280 va_end(ap);
281 return ret;
282 }
283
284
285 public int
el_get(EditLine * el,int op,...)286 el_get(EditLine *el, int op, ...)
287 {
288 va_list ap;
289 int ret;
290
291 if (!el)
292 return -1;
293
294 va_start(ap, op);
295
296 switch (op) {
297 case EL_PROMPT: /* el_pfunc_t * */
298 case EL_RPROMPT: {
299 el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
300 ret = prompt_get(el, p, 0, op);
301 break;
302 }
303
304 case EL_PROMPT_ESC: /* el_pfunc_t *, char **/
305 case EL_RPROMPT_ESC: {
306 el_pfunc_t *p = va_arg(ap, el_pfunc_t *);
307 char *c = va_arg(ap, char *);
308 wchar_t wc = 0;
309 ret = prompt_get(el, p, &wc, op);
310 *c = (char)wc;
311 break;
312 }
313
314 case EL_EDITOR: {
315 const char **p = va_arg(ap, const char **);
316 const wchar_t *pw;
317 ret = el_wget(el, op, &pw);
318 *p = ct_encode_string(pw, &el->el_lgcyconv);
319 if (!el->el_lgcyconv.csize)
320 ret = -1;
321 break;
322 }
323
324 case EL_TERMINAL: /* const char ** */
325 ret = el_wget(el, op, va_arg(ap, const char **));
326 break;
327
328 case EL_SIGNAL: /* int * */
329 case EL_EDITMODE:
330 case EL_UNBUFFERED:
331 case EL_PREP_TERM:
332 ret = el_wget(el, op, va_arg(ap, int *));
333 break;
334
335 case EL_GETTC: {
336 char *argv[20];
337 static char gettc[] = "gettc";
338 int i;
339 for (i = 1; i < (int)__arraycount(argv); ++i)
340 if ((argv[i] = va_arg(ap, char *)) == NULL)
341 break;
342 argv[0] = gettc;
343 ret = terminal_gettc(el, i, argv);
344 break;
345 }
346
347 /* XXX: do we need to change el_rfunc_t? */
348 case EL_GETCFN: /* el_rfunc_t */
349 ret = el_wget(el, op, va_arg(ap, el_rfunc_t *));
350 break;
351
352 case EL_CLIENTDATA: /* void ** */
353 ret = el_wget(el, op, va_arg(ap, void **));
354 break;
355
356 case EL_GETFP: { /* int, FILE ** */
357 int what = va_arg(ap, int);
358 FILE **fpp = va_arg(ap, FILE **);
359 ret = el_wget(el, op, what, fpp);
360 break;
361 }
362
363 default:
364 ret = -1;
365 break;
366 }
367
368 va_end(ap);
369 return ret;
370 }
371
372
373 const LineInfo *
el_line(EditLine * el)374 el_line(EditLine *el)
375 {
376 const LineInfoW *winfo = el_wline(el);
377 LineInfo *info = &el->el_lgcylinfo;
378 size_t offset;
379 const Char *p;
380
381 info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv);
382
383 offset = 0;
384 for (p = winfo->buffer; p < winfo->cursor; p++)
385 offset += ct_enc_width(*p);
386 info->cursor = info->buffer + offset;
387
388 offset = 0;
389 for (p = winfo->buffer; p < winfo->lastchar; p++)
390 offset += ct_enc_width(*p);
391 info->lastchar = info->buffer + offset;
392
393 return info;
394 }
395
396
397 int
el_insertstr(EditLine * el,const char * str)398 el_insertstr(EditLine *el, const char *str)
399 {
400 return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv));
401 }
402